Sample preparation for Organic Solvent

[lauric]

Currently my lab is direct inject the organic solvent into GC without any sample preparation step. I do not know whether the sample is required to remove moisture or not.
If yes, anhydrous sodium sulfate is it sufficient enough?

[Johnny Rod]

What solvent and what are you trying to analyse for? If you're just QCing raw materials for %area then it's fine.

[lauric]

What solvent and what are you trying to analyse for? If you're just QCing raw materials for %area then it's fine.

ACETONE, BUTYL ACETATE, BUTYL CELLOSOLVE, CELLOSOLVE ACETATE, ETHYL ACETATE, HEXANE, ISO-BUTANOL, IPA, MIBK, MEK, METHANOL, N-BUTANOL, TOLUENE, XYLENE, DEA, DEG, MPG, MEA, MEG, MPA, TEG, ETHOXY PROPANOL, AMYL ACETATE,DIMETHYL FORMAMIRY,CYCLOHEXANE.

Yes i'm doing QC, our company is doing solvent repacking and blending.

[dblux_]

ACETONE, BUTYL ACETATE, BUTYL CELLOSOLVE, CELLOSOLVE ACETATE, ETHYL ACETATE, HEXANE, ISO-BUTANOL, IPA, MIBK, MEK, METHANOL, N-BUTANOL, TOLUENE, XYLENE, DEA, DEG, MPG, MEA, MEG, MPA, TEG, ETHOXY PROPANOL, AMYL ACETATE,DIMETHYL FORMAMIRY,CYCLOHEXANE.

What's that ? Is it dimethylformamide ?

[lauric]

ACETONE, BUTYL ACETATE, BUTYL CELLOSOLVE, CELLOSOLVE ACETATE, ETHYL ACETATE, HEXANE, ISO-BUTANOL, IPA, MIBK, MEK, METHANOL, N-BUTANOL, TOLUENE, XYLENE, DEA, DEG, MPG, MEA, MEG, MPA, TEG, ETHOXY PROPANOL, AMYL ACETATE,DIMETHYL FORMAMIRY,CYCLOHEXANE.

What's that ? Is it dimethylformamide ?

Maybe...i not sure...i just take from the list in my lab

[dblux_]

Maybe...i not sure...i just take from the list in my lab

Can't be anything else.